What ingredient is dominant in the Cinna Stix dipping icing?

The Cinna Stix dipping icing is primarily characterized by its sweet flavor profile which is derived from its key ingredients. The presence of sugar is crucial, as it contributes to the icing's sweetness and overall taste that complements the Cinna Stix. Additionally, sweet cream serves to provide a creamy texture and a rich flavor, enhancing the overall dipping experience. The combination of these two ingredients makes the icing both delicious and suitable for pairing with the cinnamon-flavored breadsticks.

In contrast, the other options do not accurately represent the key components of the Cinna Stix dipping icing. Butter and cinnamon, while they may sound appealing, do not reflect the main ingredients used in the icing. Similarly, Elmer's glue, which is not edible, is completely irrelevant in this context, and chocolate and vanilla are not used in the formulation of Cinna Stix dipping icing. Thus, the correct choice reflects the actual ingredients that create the distinctive flavor of the dipping icing.